:root {
  --bg: #ffffff;
  --bg-soft: #f7f7fb;
  --text: #16181d;
  --muted: #5c6270;
  --border: #e4e6ec;
  --accent: #5b3df5;
  --accent-soft: #eeebff;
  --max: 1120px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code { background: var(--bg-soft); border: 1px solid var(--border); border-radius: 4px; padding: 0.1em 0.35em; font-size: 0.9em; }
.container { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header { border-bottom: 1px solid var(--border); background: #fff; }
.header-row { display: flex; align-items: center; gap: 22px; height: 60px; }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 19px; color: var(--text); }
.brand:hover { text-decoration: none; color: var(--accent); }
.brand-mark { color: var(--accent); }
.main-nav { display: flex; gap: 18px; font-size: 14.5px; }
.main-nav a { color: var(--muted); }
.main-nav a:hover { color: var(--text); text-decoration: none; }
.header-search { margin-left: auto; display: flex; }
.header-search input {
  border: 1px solid var(--border); border-right: none; border-radius: 8px 0 0 8px;
  padding: 7px 12px; font-size: 14px; width: 200px; outline: none;
}
.header-search input:focus { border-color: var(--accent); }
.header-search button {
  border: 1px solid var(--accent); background: var(--accent); color: #fff;
  border-radius: 0 8px 8px 0; padding: 7px 14px; font-size: 14px; cursor: pointer;
}

/* Hero */
.hero { background: linear-gradient(180deg, var(--accent-soft) 0%, #fff 100%); padding: 64px 0 56px; text-align: center; }
.hero h1 { font-size: clamp(28px, 4.5vw, 42px); margin: 0 0 12px; letter-spacing: -0.02em; }
.hero p { color: var(--muted); max-width: 620px; margin: 0 auto 28px; font-size: 17px; }
.hero-search { display: flex; max-width: 560px; margin: 0 auto 18px; }
.hero-search input {
  flex: 1; border: 1px solid var(--border); border-right: none; border-radius: 10px 0 0 10px;
  padding: 13px 18px; font-size: 16px; outline: none;
}
.hero-search input:focus { border-color: var(--accent); }
.hero-search button {
  border: 1px solid var(--accent); background: var(--accent); color: #fff;
  border-radius: 0 10px 10px 0; padding: 13px 24px; font-size: 15px; font-weight: 600; cursor: pointer;
}
.hero-search button:hover { filter: brightness(0.94); }
.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.hero-tags a {
  background: #fff; border: 1px solid var(--border); border-radius: 999px;
  padding: 5px 14px; font-size: 13.5px; color: var(--muted); max-width: 260px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.hero-tags a:hover { color: var(--accent); border-color: var(--accent); text-decoration: none; }

/* Sections and cards */
.section { padding: 30px 0; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 16px; }
.section-head h2 { font-size: 22px; margin: 0; letter-spacing: -0.01em; }
.see-all { font-size: 14px; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card {
  border: 1px solid var(--border); border-radius: 12px; padding: 18px 20px;
  display: flex; flex-direction: column; gap: 8px; color: var(--text); background: #fff;
  transition: border-color 120ms ease, box-shadow 120ms ease;
}
.card:hover { text-decoration: none; border-color: var(--accent); box-shadow: 0 2px 10px rgba(91, 61, 245, 0.08); }
.card h3 { margin: 0; font-size: 16.5px; line-height: 1.35; }
.card p { margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-cat {
  color: var(--accent); background: var(--accent-soft); border-radius: 6px;
  padding: 2px 9px; font-size: 12px; font-weight: 600; align-self: flex-start;
}
.card-meta { color: #9aa0ae; font-size: 12.5px; }

.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.cat-grid-wide { grid-template-columns: repeat(3, 1fr); }
.cat-card {
  border: 1px solid var(--border); border-radius: 12px; padding: 18px 20px; color: var(--text); background: #fff;
}
.cat-card:hover { text-decoration: none; border-color: var(--accent); }
.cat-card h3 { margin: 4px 0 6px; font-size: 16.5px; }
.cat-card p { margin: 0; color: var(--muted); font-size: 13.5px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.cat-count { font-size: 12px; color: var(--muted); }
.discover-more { background: var(--bg-soft); border-radius: 14px; padding: 26px 28px !important; }
.discover-more h2 { margin-top: 0; }
.discover-more p { color: var(--muted); max-width: 640px; }
.btn {
  display: inline-block; background: var(--accent); color: #fff; border-radius: 9px;
  padding: 9px 20px; font-weight: 600; font-size: 14.5px;
}
.btn:hover { text-decoration: none; filter: brightness(0.94); }
.btn.ghost { background: #fff; color: var(--accent); border: 1px solid var(--accent); }

/* Page heads and pagination */
.page-head { padding: 40px 0 8px; }
.page-head h1 { margin: 0 0 6px; font-size: 30px; letter-spacing: -0.02em; }
.page-head p { margin: 0 0 10px; color: var(--muted); }
.pagination { display: flex; gap: 6px; margin: 26px 0; flex-wrap: wrap; }
.page-link {
  border: 1px solid var(--border); border-radius: 8px; padding: 7px 13px; font-size: 14px; color: var(--muted);
}
.page-link:hover { text-decoration: none; border-color: var(--accent); color: var(--accent); }
.page-link.current { background: var(--accent); color: #fff; border-color: var(--accent); }

/* Article page */
.breadcrumbs { padding: 18px 0 0; font-size: 13.5px; color: var(--muted); }
.breadcrumbs a { color: var(--muted); }
.breadcrumbs a:hover { color: var(--accent); }
.article-layout { padding-bottom: 40px; }
.article-header { padding: 14px 0 8px; max-width: 780px; }
.article-header h1 { font-size: clamp(26px, 3.6vw, 36px); line-height: 1.22; margin: 10px 0 10px; letter-spacing: -0.02em; }
.article-standfirst { color: var(--muted); font-size: 17px; margin: 0 0 10px; }
.article-meta { display: flex; gap: 16px; color: #9aa0ae; font-size: 13px; flex-wrap: wrap; }
.article-grid { display: grid; grid-template-columns: minmax(0, 1fr) 250px; gap: 40px; max-width: 990px; }
.article-body { max-width: 720px; min-width: 0; }
.article-body h2 { font-size: 24px; margin: 34px 0 10px; letter-spacing: -0.01em; scroll-margin-top: 20px; }
.article-body h3 { font-size: 18.5px; margin: 24px 0 8px; scroll-margin-top: 20px; }
.article-body p { margin: 12px 0; font-size: 16.5px; line-height: 1.75; }
.article-body ul { padding-left: 22px; }
.article-body li { margin: 6px 0; font-size: 16px; line-height: 1.65; }
.article-body blockquote {
  margin: 18px 0; padding: 10px 18px; border-left: 3px solid var(--accent);
  background: var(--bg-soft); border-radius: 0 8px 8px 0; color: var(--muted);
}
.table-wrap { overflow-x: auto; margin: 16px 0; }
.table-wrap table { border-collapse: collapse; width: 100%; font-size: 14.5px; }
.table-wrap th, .table-wrap td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }
.table-wrap th { background: var(--bg-soft); }
.cite a { color: var(--accent); font-size: 0.75em; text-decoration: none; }
.cite a:hover { text-decoration: underline; }

.key-facts {
  background: var(--accent-soft); border: 1px solid #dcd6ff; border-radius: 12px;
  padding: 6px 22px 12px; margin: 18px 0 24px;
}
.key-facts h2 { font-size: 16px; margin: 12px 0 4px; }
.key-facts ul { margin: 6px 0; padding-left: 20px; }
.key-facts li { font-size: 15px; margin: 6px 0; }

.faq { margin-top: 30px; }
.faq-item { border: 1px solid var(--border); border-radius: 10px; padding: 14px 18px; margin: 10px 0; }
.faq-item h3 { margin: 0 0 6px; font-size: 16px; }
.faq-item p { margin: 0; color: var(--muted); font-size: 15px; }

.refs { margin-top: 30px; border-top: 1px solid var(--border); padding-top: 18px; }
.refs h2 { font-size: 20px; }
.refs ol { padding-left: 22px; color: var(--muted); font-size: 14px; }
.refs li { margin: 8px 0; }
.ref-domain { color: #9aa0ae; font-size: 12.5px; }
.refs a { word-break: break-word; }

.related { margin-top: 26px; }
.related-links { display: flex; flex-wrap: wrap; gap: 8px; }
.related-link {
  border: 1px solid var(--border); border-radius: 999px; padding: 6px 15px;
  font-size: 14px; color: var(--text);
}
.related-link:hover { text-decoration: none; border-color: var(--accent); color: var(--accent); }
.related-link.pending { color: #9aa0ae; border-style: dashed; }

.article-aside { min-width: 0; }
.toc { border: 1px solid var(--border); border-radius: 12px; padding: 4px 18px 10px; background: #fff; }
.toc h2 { font-size: 14px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin: 14px 0 8px; }
.toc ol { margin: 0; padding-left: 18px; font-size: 13.5px; }
.toc .toc-l3 { padding-left: 14px; }
.toc li { margin: 6px 0; }
.toc a { color: var(--text); }
.toc a:hover { color: var(--accent); }
.aside-box { border: 1px solid var(--border); border-radius: 12px; padding: 4px 18px 12px; margin-top: 16px; background: var(--bg-soft); }
.aside-box h2 { font-size: 14px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin: 14px 0 8px; }
.aside-box p { font-size: 13.5px; color: var(--muted); margin: 0 0 8px; }

/* Static prose pages */
.prose { max-width: 720px; padding-bottom: 50px; }
.prose h2 { font-size: 21px; margin: 26px 0 8px; }
.prose p, .prose li { font-size: 15.5px; line-height: 1.7; color: #333; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); margin-top: 40px; background: var(--bg-soft); }
.footer-cols { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 24px; padding: 34px 20px 10px; }
.footer-brand { font-weight: 700; font-size: 17px; margin: 0 0 6px; }
.footer-cols p { color: var(--muted); font-size: 13.5px; margin: 0 0 8px; }
.footer-cols nav { display: flex; flex-direction: column; gap: 7px; font-size: 14px; }
.footer-cols nav a { color: var(--muted); }
.footer-cols nav a:hover { color: var(--accent); }
.footer-legal { padding: 6px 20px 26px; }
.footer-legal p { color: #9aa0ae; font-size: 12.5px; margin: 0; }
.footer-legal a { color: var(--muted); }

/* Responsive */
@media (max-width: 940px) {
  .grid, .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .article-grid { grid-template-columns: 1fr; gap: 8px; }
  .article-aside { order: 2; }
  .toc { display: none; }
  .main-nav { display: none; }
}
@media (max-width: 620px) {
  .grid, .cat-grid, .cat-grid-wide { grid-template-columns: 1fr; }
  .header-search input { width: 120px; }
  .hero { padding: 44px 0 36px; }
  .footer-cols { grid-template-columns: 1fr; }
  .article-body p { font-size: 15.5px; }
}